{
  "$type": "site.standard.document",
  "description": "A secondary battery comprises a positive electrode plate and a negative electrode plate. The negative electrode plate comprises a negative electrode active material layer. The negative electrode active material layer comprises a negative electrode active material. The negative electrode active…",
  "path": "/patents/1382250",
  "publishedAt": "2026-05-07T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M4/386",
    "CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED"
  ],
  "textContent": "A secondary battery comprises a positive electrode plate and a negative electrode plate. The negative electrode plate comprises a negative electrode active material layer. The negative electrode active material layer comprises a negative electrode active material. The negative electrode active material comprises a silicon-based material. In the same charging and discharging cycle process, the volume ratio of the negative electrode plate during charging and discharging of the secondary battery is R, wherein R is less than or equal to 1.5; and the volume ratio of the positive electrode plate during charging and discharging of the secondary battery is Y, wherein Y is less than or equal to 0.98.",
  "title": "SECONDARY BATTERY AND MANUFACTURING METHOD THEREFOR, AND ELECTRICAL APPARATUS"
}